Related Questions

In McCabe-Thiele method of theoretical plate calculation for a distillation column, the operating lines of stripping and rectifying sections coincide with the diagonal at __________ reflux.
A Total
B Minimum
C Operating
D Maximum permissible
McCabe-Thiele method
A Uses molal units for material and energy balance
B Uses weight fractions to express liquid and vapour composition
C Can use any type of units
D Is more accurate than Ponchan-Savarit method
In distillation column design, the McCabe-Thiele procedure is inadequate and a Ponchan-Savarit procedure is needed, when
A Saturated feed is not used
B An azeotrope forms
C The latent heat of vaporisation of the more and less volatile components are greatly different
D A total condenser is used
McCabe-Thiele method of binary distillation does not assume that the
A Sensible heat changes are negligible compared with latent heat changes
B Molar latent heats of all components are equal
C Heat of mixing is negligible
D None of these
In McCabe-Thiele method, at infinite reflux ratio
A The overhead product is minimum
B Both the operating lines coincide with diagonal
C Both A & B
D Neither A nor B
Ponchon Savarit method is based on the use of enthalpy concentration diagram, which contains the bubble point curve (saturated liquid curve), dew point curve (saturated vapour curve) and equilibrium tie lines. As compared to McCabe-Thiele's method, this method
A Is more accurate in finding the number of equilibrium stages
B Accounts for the enthalpy changes in the process
C Facilitates direct calculation of heat load on reboiler & condenser from, the diagram used in this method
D All of the above
The constants (Kb, Kr and Kk) used in the laws of crushing (i.e., Bond's law, Rittinger's law and Kick's law) depend upon the
A Feed material
B Type of crushing machine
C Both A & B
D Neither A nor B
Half the graduating class of a college was accepted by a business school. One-third of the class was accepted by a law school. It one-fifth of the class was accepted by both types of school, what fraction of the class was accepted only by a law school?
A 2/15
B 1/6
C 1/3
D 1/2
Fill in the blanks : Non-violence is the law of saints as violence is the law of the ----.
A haughty
B coward
C brute
D ignorant
Find out the underlined error: The relationship betwen law to liberty is even more paradoxical than that between law and order.
A between
B even more
C than
D and order

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